Me, myself and I have the same problem with the steam version of the game, that Is I cannot level all jobs only the freelancer will level to 99, no other job will level up, there a way to fix the problem?

I own Final Fantasy 3 on Steam and I can confirm some of the problems.

1. Job level doesn't increase for anything other than freelancer.2. Super MP doesn't do anything, I've only tested it with Red Mages.3. The Level Select jumped all the way to 99 with one press of +.

Gil increase worked, Max HP works, Heal works.

Regards,

Fermi

Just an addendum the super MP does work it just only works out of battle (select status then the character and hit the button, when you back out of status they will have 99MP but it will reset when you get into a fight or open status again)

The level select does jump to 99 but as a workaround you can decrease it one at a time to get the intended level